Table 2. Correlations between clinical parameters and expressions of OPG protein or mRNA in preeclamptic group(including mild and sever preeclamptic group).

parameters	OPG protein		OPG mRNA
	R	P	R	P
SBP pre-delivery	0.487	0.016	0.787	0.000
DBP pre-delivery	0.262	0.217	0.460	0.024
Urine protein(g/24 h)	0.529	0.008	0.742	0.000
Serum albumin(g/L)	−0.553	0.005	−0.542	0.006
Serum Cr(umol/L)	0.114	0.595	0.185	0.388
Serum BU(mmol/L)	0.359	0.085	0.199	0.35
Fast sugar()	0.250	0.239	0.327	0.119
Delivery weeks	−0.366	0.078	−0.462	0.023
Birth weight(g)	−0.269	0.081	−0.658	0.000
Birth length(cm)	−0.264	0.087	−0.605	0.000